package zy0133;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class question1 {
	public static void main(String[] args) throws IOException {
		BufferedReader br=new BufferedReader(new FileReader("data.txt"));
		String line;
		StringBuilder sb=new StringBuilder();
		while((line=br.readLine())!=null){
			sb.append(line).append("\n");
		}
		System.out.println(sb);
	}	
}
